Fiber cement board is also called fiber cement pressure board or cement fiber pressure board, is a natural fiber and cement as raw material, a kind of new building material pulping, molding, cutting, pressing, conservation. Called new generation of "green" building materials, unique environmental protection functions in the fire performance and excellent moisture resistant. It is based on siliceous and calcareous material as the main material, with cellulose fiber reinforced material, mixed with other auxiliary materials.